Oliver Mulherin, an Australian software engineer, rose to public attention after his private seaside wedding to OpenAI’s CEO Sam Altman in January 2024
Initially known for keeping a low profile, Mulherin’s life with Altman has since expanded to include new chapters—marriage, shared residences, and the arrival of their premature baby boy in early 2025.
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Table of Contents
OpenAI CEO Sam Altman’s Seaside Wedding
 Confirmation of Marriage
OpenAI CEO Sam Altman has officially tied the knot with his partner, Oliver Mulherin, as confirmed by the tech mogul himself.1
The joyous occasion was captured in photos shared on social media, showcasing a seaside ceremony.
The 38-year-old Altman celebrated the beginning of the new year with wedding rings, marking the union with Mulherin in a picturesque seaside ceremony.
NBC News provided confirmation of the marriage, and images from the intimate event circulated on various social media platforms.
 About Oliver Mulherin
Oliver Mulherin, born in Australia, is a software engineer and a graduate of the University of Melbourne, as per his LinkedIn profile. His professional background includes a stint as a software engineer at Meta from August 2020 to November 2022.
Altman and Mulherin have kept their relationship largely private, with few details known, including the duration of their partnership.
In a September 2023 interview with New York Magazine, Altman revealed that they share a residence on San Francisco’s Russian Hill and expressed their shared desire for children in the near future.
OpenAI CEO Sam Altman marries Boyfriend Oliver Mulherin.#TNShorts #SamAltman pic.twitter.com/wUXRDNYXCr
— TIMES NOW (@TimesNow) January 12, 2024
Public Appearances
The couple made their first public appearance at a White House dinner in June of the previous year. Altman brought Mulherin as his guest to the event hosted by President Joe Biden for Indian Prime Minister Narendra Modi.
Altman co-founded the organization that would later become OpenAI in 2015. He served as the CEO of the company, overseeing projects like ChatGPT from 2019 until November 2023.
Despite a temporary ousting by the board, Altman was reinstated shortly after more than 700 employees signed a letter threatening to quit.
Sam Altman’s New Husband Oliver Mulherin
The marriage of Sam Altman, the influential CEO of OpenAI, to his longtime partner Oliver Mulherin took place in a private ceremony on an undisclosed tropical beach. The ceremony was officiated by Altman’s brother Jack.2
Altman’s Ascendancy in Tech:
Sam Altman has emerged as a prominent figure in Silicon Valley, particularly with the rise of AI and OpenAI’s ChatGPT program. Last year, New York Magazine labeled him “the Oppenheimer of Our Age.” The CEO’s influence in the tech world is significant.
The Wedding Details:
Altman and Mulherin’s wedding ceremony was casual and intimate, reflecting the couple’s choice of an undisclosed tropical beach setting. NBC News confirmed the nuptials through a text from Altman himself.
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Oliver Mulherin’s Background and Career
Oliver Mulherin, the newly-wedded spouse of Sam Altman, is a native Australian and a graduate of the University of Melbourne.3
His LinkedIn profile reveals that he currently works as a software engineer.
Details about Altman and Mulherin’s relationship, including its duration and how they met, remain private. The couple has chosen to keep this aspect of their lives away from public scrutiny.
 Education
Oliver Mulherin was born in Australia and completed his bachelor’s degree in computer science from the University of Melbourne in 2016, according to information available on his LinkedIn profile.Â
Professional Journey
A software engineer by profession, Mr. Mulherin has contributed to various projects and organizations. He worked at Meta in Menlo Park, California, from 2020 to 2022 and has also been employed by Broadwing and SPARK Neuro.
AI Expertise
During his college years, Mr. Mulherin engaged in diverse AI projects, ranging from language detection to general games. His expertise lies in the field of the Internet of Things (IoT), leading him to join the IOTA Foundation, an open-source coding organization, in 2018, as indicated on their website.
Living Arrangements
Sam Altman and Mr. Mulherin share a residence on Russian Hill in San Francisco during the week. On weekends, they retreat to a 25-year-old ranch in Napa, California, described as “remodelled to look both folksy and contemporary” by the New York Times.
Expressing their aspirations, the couple has shared their desire to start a family soon. In an interview with the New York Magazine in September 2023, Mr. Altman conveyed their intention to have children in the near future.
Notable Updates
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Joining the Giving Pledge: The couple committed to philanthropy by joining the billionaire Giving Pledge in mid-2024.
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OpenAI Milestones: Sam is leading OpenAI through its launch of the GPT Store and transitioning to a for-profit subsidiary as of late 2024/early 2025.4
Sam Altman and Oliver Mulherin’s Relationship Timeline
It was reported in September that Altman and Mulherin expressed their desire to start a family soon. Altman, being the oldest of four, has a preference for large families.
Altman and Mulherin reside in a house on Russian Hill in San Francisco during the week. On weekends, they escape to a ranch in Napa Valley, as reported by the New York Times.
The ranch is involved in grape cultivation for wine and cattle raising. Notably, Altman is vegan, while Mulherin is not.
Public Appearances
Altman and Mulherin made one of their first public appearances in June at a state dinner hosted by President Biden for Indian Prime Minister Narendra Modi.5
Despite Altman’s influence in the tech industry, Mulherin maintains a low public profile. His private Instagram account has less than 600 followers, reflecting his preference for privacy.
Mulherin studied computer science at the University of Melbourne and previously worked as a software engineer at Meta from August 2020 to November 2022, according to his LinkedIn profile.
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Oliver Mulherin and Sam Altman: Tech Power Couple
Oliver Mulherin and Sam Altman, notable figures in the tech industry, have shared a romantic journey since 2019.
Their relationship became public during a White House dinner in June of the same year, hosted by President Joe Biden in honor of Indian Prime Minister Narendra Modi.
Marriage Ceremony
Oliver Mulherin and Sam Altman’s union was solemnized in a private seaside ceremony in Hawaii in January 2024.
The couple’s wedding photos surfaced on social media, and Altman confirmed the news, marking the beginning of a new chapter in their lives.
Mulherin, a software engineer and graduate of the University of Melbourne, contributed to Meta from August 2020 to November 2022. On the other hand, Altman served as the CEO of OpenAI and played a crucial role in co-founding Y Combinator.
Despite the demands of their respective careers, Oliver Mulherin and Sam Altman successfully manage to balance their professional and personal lives.
Their ability to navigate the challenges of a high-profile career while maintaining a harmonious partnership is a testament to their accomplishments.
FAQ’s
Q1: Who is Oliver Mulherin?
An Australian software engineer, University of Melbourne graduate, former Meta employee, and current husband of Sam Altman.
Q2: When did Oliver and Sam get married?
They were wed in January 2024 at a private seaside ceremony in Hawaii.
Q3: Do they live together?
Yes, the couple shares a home in San Francisco’s Russian Hill and a peaceful ranch in Napa, California.
Q4: Do they have children?
They welcomed a premature baby boy in February 2025, who is currently healthy and in the NICU.
Q5: Any philanthropic or notable efforts from them?
Yes, they’ve joined the Giving Pledge to donate the majority of their wealth.6
In The End
From his understated beginnings in Australian tech to becoming a devoted husband and new father, Oliver Mulherin’s life with Sam Altman is as touching as it is private.
Together, they’re shaping a future rooted in cutting-edge AI and heartfelt family moments.
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